AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:10:32
2003 Joint Central and Western Section Meeting
Boulder, CO, October 24, 2003
Meeting #989
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Friday October 3, 2003

Friday October 3, 2003, 8:00 a.m.4:00 p.m.
Meeting Registration
Lobby, Mathematics Building 
Friday October 3, 2003, 8:00 a.m.4:00 p.m.
Exhibit and Book Sale
Lobby, Mathematics Building 
Friday October 3, 2003, 8:30 a.m.10:50 a.m.
Special Session on Graphs and Diagraphs, II
Room 131 (1st Floor), Engineering Center (ECCR)
Organizers:
Michael Jacobson, University of Colorado, Denver msj@math.cudenver.edu
Richard J. Lundgren, University of colorado, Denver lundgren@carbon.cudenver.edu

8:30 a.m.
On barvisibility graphs.
Joan P Hutchinson*, Macalester College
(98905129) 
9:00 a.m.
On unit barvisibility graphs.
Alice M Dean, Skidmore College
Ellen Gethner*, University of Colorado at Denver
Joan P Hutchinson, Macalester College
(98905130) 
9:30 a.m.
Several Characterizations for Unit Interval Bigraphs.
David E. Brown*, University of Colorado at Denver
Richard Lundgren, University of Colorado at Denver
(98905156) 
10:00 a.m.
Interval kgraphs and related partial orders.
Stephen Carl Flink*, University of Colorado at Denver
(98905227) 
10:30 a.m.
Quadrangular Tournaments and Orthogonal Matrices.
Dustin J. Stewart*, University of Colorado at Denver
(98905225)

8:30 a.m.

Friday October 3, 2003, 8:30 a.m.10:50 a.m.
Special Session on Algebraic Geometry, I
Room 155 (1st Floor), Engineering Center (ECCR)
Organizers:
Holger Kley, Colorado State University kley@math.colostate.edu
Rick Miranda, Colorado State University miranda@math.colostate.edu
Chris Peterson, Colorado State University peterson@math.colostate.edu

8:30 a.m.
Extensions and Rank$2$ Vector Bundles on Irreducible Nodal Curves.
Daniele Arcara*, University of Utah
(98914251) 
9:00 a.m.
New bounds on Seshadri constants and nef divisors.
Brian Harbourne*, University of NebraskaLincoln
Joaquim Ro\'e, Universitat Auton\`oma de Barcelona
(9891483) 
9:30 a.m.
Multigraded CastelnuovoMumford Regularity.
Diane Maclagan*, Stanford University
(98914249) 
10:00 a.m.
Discussion 
10:30 a.m.
Kaehler Solvmanifolds and a conjecture of Benson and Gordon.
Donu Arapura*, Purdue University
(98932167)

8:30 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Algebras, Lattices and Varieties, III
Room 151 (1st Floor), Engineering Center (ECCR)
Organizers:
Keith A. Kearnes, University of Colorado, Boulder kearnes@euclid.colorado.edu
Agnes Szendrei, Bolyai Institute szendrei@math.uszeged.hu
Walter Taylor, University of Colorado, Boulder wtaylor@euclid.colorado.edu

9:00 a.m.
Congruence Lattices of Finite Algebras
John W Snow*, Concordia University, Nebraska
(9890836) 
9:30 a.m.
Homotopy groups of digraphs and {\bf NP}complete retraction problems.
Benoit Larose*, Concordia University, Montr\'eal, Canada
(9890629) 
10:00 a.m.
Break 
10:30 a.m.
Whaley's Theorem for Finite Lattices.
Ralph Freese, University of Hawaii
Jennifer Hyndman*, University of Northern British Columbia
J B Nation, University of Hawaii
(9890645)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Applications of Number Theory and Algebraic Geometry to Coding, I
Room 200 (2nd Floor), Engineering Center (ECCR)
Organizers:
David R. Grant, University of Colorado, Boulder frant@boulder.colorado.edu
Jose Felipe Voloch, University of Texasat Austin voloch@math.utexas.edu
Judy Leavitt Walker, University of Nebraska, Lincoln jwalker@math.unl.edu

9:00 a.m.
Cyclic caps of more than $3q^2$ points in $AG(4,q)$ in characteristic $2.$.
Juergen Bierbrauer*, Michigan Technological University
(98951148) 
9:30 a.m.
Algebraic Constructions of LowDensity Parity Check Codes.
Matthew T Koetz*, University of Nebraska, Lincoln
(98911164) 
10:00 a.m.
Applications of Algebraic Number Theory in Multiantenna Wireless Communications.
Pranav Dayal*, University of Colorado, Boulder.
Mahesh K Varanasi, University of Colorado, Boulder.
(98994259) 
10:30 a.m.
On SpaceTime Coding and the Diophantine Approximation Theory.
Hesham El Gamal*, The Ohio State University
Mohamed Oussama Damen, University of Alberta
(98911256)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Geometric Methods in Partial Differential Equations, III
Room 1B 40 (Basement), Engineering Center (ECCR)
Organizers:
Jeanne N. Clelland, University of Colorado, Boulder Jeanne.Clelland@colorado.edu
George R. Wilkins, University of Hawaii grw@math.hawaii.edu

9:00 a.m.
The Inverse Problem of Lagrangian Mechanics for the Canonical Lie Group Spray.
Gerard Thompson*, University of Toledo
Ryad A Ghanam, University of Pittsburgh at Greensburgh
(98953245) 
10:00 a.m.
Some general observations regarding symmetry reduction of EDS.
Ian M Anderson*, Utah State University
(98953226)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Groupoids in Analysis and Geometry, III
Room 133 (1st Floor), Engineering Center (ECCR)
Organizers:
Lawrence Baggett, University of Colorado, Boulder baggett@euclid.colorado.edu
Jerry Kaminker, Indiana UniversityPurdue University Indianapolis kaminker@math.iupui.edu
Judith Packer, University of Colorado, Boulder packer@euclid.colorado.edu

9:00 a.m.
Fell Bundles and Groupoid Quantization.
Birant Ramazan*, University of Nevada Reno
(98981267) 
9:30 a.m.
Essentially trivial equivalence relations.
Raymond Fabec*, Department of Mathematics, Louisiana State University, Baton Rouge
(98920115) 
10:00 a.m.
On the cyclic cohomology of extended Hopf algebras.
Masoud Khalkhali*, University of Western Ontario
(98919133) 
10:30 a.m.
The universal cover of a higher rank graph.
Alex Kumjian*, University of Nevada, Reno
(98946194)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:45 a.m.
Special Session on Noncommutative Geometry and Geometric Analysis, III
Room 139 (1st Floor), Engineering Center (ECCR)
Organizers:
Carla Farsi, University of Colorado farsi@euclid.colorado.edu
Alexander Gorokhovsky, University of Colorado gorokhov@euclid.colorado.edu
Siye Wu, University of Colorado siye.wu@colorado.edu

9:00 a.m.
Positive Mass Theorem and Stability of Manifolds with Parallel Spinors.
Xianzhe Dai*, UCSB
Xiaodong Wang, MIT
Guofang Wei, UCSB
(98958174) 
10:00 a.m.
Noncommutative geometry of limit sets.
John W Lott*, University of Michigan
(9895885)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Homotopy Theory, I
Room 105 (1st Floor), Engineering Center (ECCR)
Organizers:
Daniel Dugger, University of Oregon ddugger@math.uoregon.edu
Brooke E. Shipley, Purdue University bshipley@math.purdue.edu

9:00 a.m.
Break 
9:30 a.m.
Knot theory through induced maps on configuration spaces.
Dev P. Sinha*, University of Oregon
(98957157) 
10:30 a.m.
Simplicial groups modelling Algebraic Ktheory.
Jeanne Duflot*, Colorado State University
(98919149)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Structured Population and Epidemic Models:Periodicity, Chaos, and Extinction, II
Room 116 (1st Floor), Engineering Center (ECCR)
Organizers:
Linda J. S. Allen, Texas Tech University lallen@math.ttu.edu
Sophia R.J. Jang, University of Louisiana at Lafayette jang@louisiana.edu

9:00 a.m.
Synchronous Oscillations and a Route to Chaos in the LPA Model.
Jim Cushing*, University of Arizona
(9899299) 
9:30 a.m.
Predicting Irregularities in Population Cycles.
Shandelle M. Henson*, Andrews University
(98992106) 
10:00 a.m.
Extinction Effect of Parasites on Host Populations.
Yang Kuang*, Arizona State University
(9899291) 
10:30 a.m.
Disease induced oscillations between two competing species.
Pauline van den Driessche, University of Victoria
Mary Lou Zeeman*, University of Texas at San Antonio
(98992199)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Associative Rings and their Modules, I
Room 137 (1st Floor), Engineering Center (ECCR)
Organizers:
Gene Abrams, University of Colorado at Colorado Springs abrams@math.uccs.edu
Kent Fuller, University of Iowa kfuller@math.uiowa.edu

9:00 a.m.
On Mueller's question.
P N Anh*, R\'enyi Institute, Hungary
D Herbera, Universidad Autonoma de Barcelona, Spain
(98916131) 
9:30 a.m.
Actions of finite groups on smooth projective schemes.
Frauke M. Bleher*, University of Iowa
Ted Chinburg, University of Pennsylvania
(98916119) 
10:00 a.m.
Ring epimorphisms and $C(X)$.
Michael Barr, McGill University
W.D. Burgess*, University of Ottawa
R. Raphael, Concordia University
(9891379) 
10:30 a.m.
Linear Compactness in Cotilting Dualities.
Riccardo Colpi*, Dept. of Mathematics, University of Padova, ITALY
(9891675)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Analysis on Singular Spaces, I
Room 1B 51 (Basement), Engineering Center (ECCR)
Organizers:
Mario Bonk, University of Michigan mbonk@umich.edu
Juha Heinonen, Mathemtical Sciences Research Institute heinonen@msri.org

9:00 a.m.
Lagrangian integral currents and geometry of singular spaces.
Joseph HG Fu*, University of Georgia
(98953265) 
9:30 a.m.
The impossibility of dimension reduction in $L_1$.
James R Lee, UC Berkeley
Assaf Naor*, Microsoft Research
(9895271) 
10:00 a.m.
Minimal volume Alexandrov spaces.
Peter A. Storm*, University of Chicago
(98953107) 
10:30 a.m.
Conformal deformations and volume growth.
David A Herron*, University of Cincinnati
(98930117)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Finite Geometries, III
Room 118 (1st Floor), Engineering Center (ECCR)
Organizers:
Stanley E. Payne, University of Colorad Denver spayne@math.cudenver.edu
Robert Allen Liebler, Colorado State University liebler@math.colostate.edu

9:00 a.m.
Eggs in $\mathrm{PG}(4n1,q)$, $q$ even, containing a pseudo pointed conic.
Matthew R Brown*, University of Adelaide, Australia
Michel Lavrauw, Universita degli studi di Napoli Federico II
(98951204) 
9:30 a.m.
Generalized quadrangles and their analogues via coherent configurations.
Mikhail H. Klin*, University of Delaware, Newark and BenGurion University of the Negev, Beer Sheva
Sven Reichard, University of Delaware, Newark
(98905212) 
10:00 a.m.
Elation Points in Generalized Quadrangles.
Koen J. R. Thas*, Ghent University
(98951126) 
10:30 a.m.
Characterizations of finite translation generalized quadrangles.
Joseph A Thas*, Ghent University (Belgium)
(98951125)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Nonlinear Waves, III
Room 1B 55 (Basement), Engineering Center (ECCR)
Organizers:
Bernard Deconinck, Colorado State University deconinc@math.colostate.edu
Harvey Segur, University of Colorado Boulder Harvey.Segur@colorado.edu

9:00 a.m.
Poisson brackets on meromorphic functions on hyperelliptic Riemann surfaces and 1D integrable hierarchies.
K. Vaninsky*, Michigan State University
(98934231) 
9:30 a.m.
A generalized Dirichlet to Neumann map for integrable evolution equations.
B. Pelloni*, Reading University, UK
(98935233) 
10:00 a.m.
Resonant solutions of the KP equation and the Toda lattice hierarchy.
G. Biondini*, Ohio State University
(98935232)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:25 a.m.
Special Session on Ubiquitous Heat Kernel, I
Room 150 (1st Floor), Engineering Center (ECCR)
Organizers:
Jay Jorgenson, City College of New York jjorgenson@mindspring.com
Lynne Walling, University of Colorado Boulder walling@math.colorado.edu

9:00 a.m.
Archimedean height pairing.
Bin Wang*, University of Colorado, Boulder
(98914154) 
9:30 a.m.
Archimedean height pairings using heat kernels.
Bruno Harris*, Brown University
(98914184) 
10:00 a.m.
Heat kernels and their role in trace formulas.
Jay Jorgenson*, The City College of New York
(98911183)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Computational Number Theory, I
Room 265 (2nd Floor), Engineering Center (ECCR)
Organizers:
Brian Conrey, American Institute of Mathematics conrey@aimath.org
Michael Rubinstein, American Institute of Mathematics miker@math.utexas.edu

9:00 a.m.
The Basis Problem and associated algorithms.
Thomas R Shemanske*, Dartmouth College
(9891161) 
9:30 a.m.
The Basis Problem and Associated Algorithms.
Arnold K Pizer*, University of Rochester
(9891162) 
10:00 a.m.
LSeries and Modular Forms of HalfIntegral Weight.
Holly J Rosson*, Saint Mary's College of Maryland
(98911176) 
10:30 a.m.
Central values of twisted Lfunctions.
Zhengyu Mao*, Rutgers University Newark
(9891156)

9:00 a.m.

Friday October 3, 2003, 9:00 a.m.10:45 a.m.
Special Session on Computational and Mathematical Biology, III
Room 108 (1st Floor), Engineering Center (ECCR)
Organizers:
Harvey J. Greenberg, University of Colorado at Denver hgreenbe@carbon.cudenver.edu

9:00 a.m.
A graphtheoretic approach to separation of y and bions from tandem mass spectrometry data and applications to de novo sequencing.
Chongle Pan, University of Tennessee
Bo Yan, Oak Ridge National Laboratory
Victor Olman, Oak Ridge National Laboratory
Ying Xu*, Oak Ridge National Laboratory
(9896880) 
10:00 a.m.
The Topology of DNA.
De Witt L Sumners*, Florida State University
(9899227)

9:00 a.m.

Friday October 3, 2003, 11:10 a.m.12:00 p.m.
Invited Address
Recent progress in timefrequency analysis.
Room 265 (2nd Floor), Engineering Center (ECCR)
Joseph D Lakey*, New Mexico State University
(9894209) 
Friday October 3, 2003, 1:30 p.m.2:20 p.m.
Invited Address
Rings up to homotopy.
Room 265 (2nd Floor), Engineering Center (ECCR)
Brooke Shipley*, Purdue University
(9895552) 
Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Algebras, Lattices and Varieties, IV
Room 151 (1st Floor), Engineering Center (ECCR)
Organizers:
Keith A. Kearnes, University of Colorado, Boulder kearnes@euclid.colorado.edu
Agnes Szendrei, Bolyai Institute szendrei@math.uszeged.hu
Walter Taylor, University of Colorado, Boulder wtaylor@euclid.colorado.edu

2:30 p.m.
Quasivarieties of commutative binary modes.
Anna B Romanowska*, Warsaw University of Technology, Warsaw, Poland
K Matczak, Warsaw University of Technology, Warsaw, Poland
(9890815) 
3:00 p.m.
The Dilworth Theorem on embedding lattices into uniquely complemented lattices.
George Gratzer*, University of Manitoba
Harry Lakser, University of Manitoba
(9890608) 
4:00 p.m.
Ordered and quasi ordered sets associated with transformation semigroups.
Boris M Schein*, University of Arkansas
(9890621) 
4:30 p.m.
Dualities for double quasioperator algebras.
M Gehrke*, New Mexico State University
H A Priestley, Oxford University
(9890624)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Applications of Number Theory and Algebraic Geometry to Coding, II
Room 200 (2nd Floor), Engineering Center (ECCR)
Organizers:
David R. Grant, University of Colorado, Boulder frant@boulder.colorado.edu
Jose Felipe Voloch, University of Texasat Austin voloch@math.utexas.edu
Judy Leavitt Walker, University of Nebraska, Lincoln jwalker@math.unl.edu

2:30 p.m.
Minimal Degree Liftings of Hyperelliptic Curves.
Luis R Finotti*, University of California Santa Barbara
(98911100) 
3:00 p.m.
Weierstrass semigroups and codes from a class of maximal nonclassical curves.
Gretchen L. Matthews*, Clemson University
(98914162) 
3:30 p.m.
An Improvement of the FengRao Bound on Minimum Distance.
Diana Dunn, University of Arkansas
Sarah B. Graham, Clemson University
Gary Salazar*, Trinity University
(98914161) 
4:00 p.m.
Discussion 
4:30 p.m.
Algebraic Geometric Codes on Low Rank Surfaces.
Marcos A Zarzar*, University of Texas at Austin
(98911179)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Geometric Methods in Partial Differential Equations, IV
Room 1B 40 (Basement), Engineering Center (ECCR)
Organizers:
Jeanne N. Clelland, University of Colorado, Boulder Jeanne.Clelland@colorado.edu
George R. Wilkins, University of Hawaii grw@math.hawaii.edu

2:30 p.m.
Selfdual SU(2) connections, and flows of metrics on $M^3$.
Volodya Itskov*, Duke University
(98953258) 
3:30 p.m.
SubFinsler Geometry in Dimension Three.
Jeanne N Clelland, University of Colorado at Boulder
Christopher G Moseley*, United States Military Academy
(98953198) 
4:00 p.m.
Generalized Symmetries of Darboux Integrable Equations.
Matt Biesecker*, South Dakota State University
(98935238) 
4:30 p.m.
Darboux Integrability and Backlund Equivalence for Hyperbolic Exterior Differential Systems.
Thomas A Ivey*, College of Charleston
(98935151)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Groupoids in Analysis and Geometry, IV
Room 133 (1st Floor), Engineering Center (ECCR)
Organizers:
Lawrence Baggett, University of Colorado, Boulder baggett@euclid.colorado.edu
Jerry Kaminker, Indiana UniversityPurdue University Indianapolis kaminker@math.iupui.edu
Judith Packer, University of Colorado, Boulder packer@euclid.colorado.edu

2:30 p.m.
The DixmierDouady class of groupoid crossed products.
Paul S Muhly, The University of Iowa
Dana P Williams*, Dartmouth College
(9894639) 
3:00 p.m.
C*algebras of commuting endomorphisms.
Valentin Deaconu*, University of Nevada, Reno
(98946189) 
3:30 p.m.
Actions and Coactions for groupoids.
Karla J. Oty*, Colorado State University Pueblo
Arlan Ramsay, University of Colorado, Boulder
(9892094) 
4:00 p.m.
Actions and Coactions for Groupoids, II.
Arlan Ramsay*, University of Colorado
Karla J. Oty, Colorado State University  Pueblo
(9892095) 
4:30 p.m.
Boundaries of generalized BaumslagSolitar groups.
Jerome Kaminker*, IUPUI
(98946208)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:25 p.m.
Special Session on Noncommutative Geometry and Geometric Analysis, IV
Room 139 (1st Floor), Engineering Center (ECCR)
Organizers:
Carla Farsi, University of Colorado farsi@euclid.colorado.edu
Alexander Gorokhovsky, University of Colorado gorokhov@euclid.colorado.edu
Siye Wu, University of Colorado siye.wu@colorado.edu

2:30 p.m.
Projective multiresolution analyses for $L^2(\mathbb R^n)$.
Judith A. Packer*, University of Colorado at Boulder
(98946260) 
3:30 p.m.
GaussBonnet and Poincar\'{e}Hopf Theorems for Orbifolds with Boundary.
Christopher W Seaton*, University of Colorado
(98953110) 
4:00 p.m.
Geometric Quantization, Parallel Transport and the Fourier Transform.
William D Kirwin*, University of Colorado
(98953269)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:45 p.m.
Special Session on Homotopy Theory, II
Room 105 (1st Floor), Engineering Center (ECCR)
Organizers:
Daniel Dugger, University of Oregon ddugger@math.uoregon.edu
Brooke E. Shipley, Purdue University bshipley@math.purdue.edu

2:30 p.m.
Break 
3:00 p.m.
Loop spaces via algebraic theories.
Bernard Badzioch*, University of Minnesota
Kuerak Chung, University of Minnesota
Alexander A. Voronov, University of Minnesota
(98955214) 
3:30 p.m.
Little cubes and long knots.
Ryan D Budney*, University of Rochester
(98900155) 
4:00 p.m.
$\text{Sq}^0$ and the Adams $E_2$term.
John H Palmieri*, University of Washington
(98955178)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:20 p.m.
Special Session on Structured Population and Epidemic Models:Periodicity, Chaos, and Extinction, III
Room 116 (1st Floor), Engineering Center (ECCR)
Organizers:
Linda J. S. Allen, Texas Tech University lallen@math.ttu.edu
Sophia R.J. Jang, University of Louisiana at Lafayette jang@louisiana.edu

2:30 p.m.
Competitive Exclusion and Coexistence Results for a Nonlinear SizeStructured Population Model.
Azmy S Ackleh*, University of Louisiana at Lafayette
Keng Deng, University of Louisianal at Lafayette
(9899288) 
3:00 p.m.
AgeHierarchical Competitions and the Effects of Dispersion.
K. W. Blayneh*, Florida A&M University
(98992137) 
3:30 p.m.
Effects of host chronicage structure on the dynamics of infectious diseases.
Maia Martcheva*, University of Florida
Carlos CastilloChavez, Cornell University
(9899298) 
4:00 p.m.
The most basic stagestructured population model with densitydependent per capita transition rate.
Horst R Thieme*, Arizona State University
(9899278)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Graphs and Diagraphs, III
Room 131 (1st Floor), Engineering Center (ECCR)
Organizers:
Michael Jacobson, University of Colorado, Denver msj@math.cudenver.edu
Richard J. Lundgren, University of colorado, Denver lundgren@carbon.cudenver.edu

2:30 p.m.
On graph irregularity strength.
A. Frieze, Carnegie Mellon University
R. Gould*, Emory University
M. Karonski, Emory University
F. Pfender, Technical University of Berlin
(9890555) 
3:00 p.m.
The pebbling threshold of squared cliques and a conjecture of Graham.
Glenn H Hurlbert*, Arizona State University
Airat Bekmetjev, Hope College
(9890550) 
3:30 p.m.
Chessboard Problems.
John J Watkins*, Colorado College
(9890574) 
4:00 p.m.
A bound on the total size of a cutcover.
Andre Kundgen*, Cal State San Marcos
Megan Spangler, Cal State San Marcos
(98905147) 
4:30 p.m.
Covering Euclidean $n$space by translates of a convex body.
Zoltan Furedi, University of Illinois at UrbanaChampaign, and Hungarian Academy of Sciences
JeongHyun Kang*, University of Illinois at UrbanaChampaign
(98905200)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Associative Rings and their Modules, II
Room 137 (1st Floor), Engineering Center (ECCR)
Organizers:
Gene Abrams, University of Colorado at Colorado Springs abrams@math.uccs.edu
Kent Fuller, University of Iowa kfuller@math.uiowa.edu

2:30 p.m.
Zero Divisor Graphs.
Frank DeMeyer*, Colorado state University
Lisa DeMeyer, Central Michigan University
(9891340) 
3:00 p.m.
Quivers of Locally Artinian Rings.
Jennifer A. Firkins Nordstrom*, Linfield College
(98916132) 
3:30 p.m.
$n$Cotilting and $n$Tilting Modules over Ring Extensions.
Alberto Tonolo*, University of Padova, Italy
(9891881) 
4:00 p.m.
QuasiKoszul Algebras.
Yuriy Drozd, Kyiv Taras Shevchenko University
Edward L Green*, Virginia Tech
(98916108) 
4:30 p.m.
Stacks of finite dimensional algebras and their homology.
Nancy Heinschel, University of California at Santa Barbara
Birge HuisgenZimmermann*, University of California at Santa Barbara
(98916122)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Analysis on Singular Spaces, II
Room 1B 51 (Basement), Engineering Center (ECCR)
Organizers:
Mario Bonk, University of Michigan mbonk@umich.edu
Juha Heinonen, Mathemtical Sciences Research Institute heinonen@msri.org

2:30 p.m.
A lemma on the higher integrability of functions and its applications.
Xiao Zhong*, Department of Mathematics and Statistics, University of Jyv\"askyl\"a
(98949114) 
3:00 p.m.
Size of Fatou Sets for Bounded pHarmonic Functions in the Half Plane (joint work with R. Kaufman).
JangMei Wu*, University of Illinois
Robert Kaufman, University of Illinois
(98931143) 
3:30 p.m.
Bilipschitz Embeddings of Metric Spaces in Euclidean Space.
Conrad P Plaut*, University of Tennessee
(98953237) 
4:00 p.m.
Hausdorff dimensions of Heisenberg fractals.
Zoltan M Balogh, University of Berne
Regula HoferIsenegger, University of Berne
Jeremy T Tyson*, University of Illinois
(98928239) 
4:30 p.m.
Mappings of finite distortion: The sharp modulus of continuity.
Jani Onninen*, University of Michigan
Pekka Koskela, University of Jyvaskyla
(98930252)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Algebraic Geometry, II
Room 155 (1st Floor), Engineering Center (ECCR)
Organizers:
Holger Kley, Colorado State University kley@math.colostate.edu
Rick Miranda, Colorado State University miranda@math.colostate.edu
Chris Peterson, Colorado State University peterson@math.colostate.edu

2:30 p.m.
Degenerations of vector bundles on three space.
A. Prabhakar Rao*, UMSt.Louis
(98914242) 
3:00 p.m.
Discussion 
3:30 p.m.
A rational surface of degree 12 in projective fourspace.
Hirotachi Abo*, Department of Mathematics, Colorado State University
(98914190) 
4:00 p.m.
Families of degree two curves and certain ropes.
Uwe Nagel*, University of Kentucky
Roberto Notari, Politecnico di Torino
Maria L Spreafico, Politecnico di Torino
(98914216) 
4:30 p.m.
Linear series on a special rational surface.
Hal Schenck*, Texas A&M University
(98914186)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Finite Geometries, IV
Room 118 (1st Floor), Engineering Center (ECCR)
Organizers:
Stanley E. Payne, University of Colorad Denver spayne@math.cudenver.edu
Robert Allen Liebler, Colorado State University liebler@math.colostate.edu

2:30 p.m.
Odd order conjecture of translation planes.
Chat Y. Ho*, University of Florida
(9892060) 
3:00 p.m.
Construction of Some New Projective Planes.
G Eric Moorhouse*, University of Wyoming
(9890544) 
3:30 p.m.
The Classification of flag transitive planes of order 32.
Patrick S Fleming*, University of Wyoming
(98951113) 
4:00 p.m.
Orbit Computation and Applications in Finite Geometry.
Anton Betten*, Colorado State University
(98951136) 
4:30 p.m.
Hemisystems of $H(3,q^2)$.
Tim Penttila*, University of Western Australia
(9895138)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Nonlinear Waves, IV
Room 1B 55 (Basement), Engineering Center (ECCR)
Organizers:
Bernard Deconinck, Colorado State University deconinc@math.colostate.edu
Harvey Segur, University of Colorado Boulder Harvey.Segur@colorado.edu

2:30 p.m.
Nonlinear dynamics with matter waves  experiments with BoseEinstein condensates.
P. W. Engels*, University of Colorado, Boulder
(98935234) 
3:00 p.m.
Turning fermions into bosons.
D. S. Jin*, University of Colorado, Boulder
(98935235) 
3:30 p.m.
Nonlinear Waves in BEC: A Collection of Short Stories.
P. G. Kevrekidis*, University of Massachusetts
(98935244) 
4:00 p.m.
SelfTrapping of Light in a TwoDimensional Nonlinear Periodic Structure.
Z. Musslimani*, Central Florida University
(98935246) 
4:30 p.m.
Dynamics of periodic multicomponent BoseEinstein condensates.
B. Deconinck*, University of Washington
(98935247)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.3:55 p.m.
Special Session on Ubiquitous Heat Kernel, II
Room 150 (1st Floor), Engineering Center (ECCR)
Organizers:
Jay Jorgenson, City College of New York jjorgenson@mindspring.com
Lynne Walling, University of Colorado Boulder walling@math.colorado.edu

2:30 p.m.
A heat kernel associated to Ramanujan's tau function.
Jeffrey Stopple*, Mathematics, UCSB
(98911229) 
3:00 p.m.
Comparison of the Heat Kernel for Finite Graphs and that for Compact Riemann Surfaces.
Audrey A. Terras*, Univ. of California at San Diego
(98911207) 
3:30 p.m.
Kato's inequality for discrete magnetic Laplacians.
J. Dodziuk*, Queens College (CUNY)
V. Mathai, University of Adelaide
(98958165)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.5:00 p.m.
Special Session on Computational Number Theory, II
Room 265 (2nd Floor), Engineering Center (ECCR)
Organizers:
Brian Conrey, American Institute of Mathematics conrey@aimath.org
Michael Rubinstein, American Institute of Mathematics miker@math.utexas.edu

Friday October 3, 2003, 2:30 p.m.4:50 p.m.
Special Session on Computational and Mathematical Biology, IV
Room 108 (1st Floor), Engineering Center (ECCR)
Organizers:
Harvey J. Greenberg, University of Colorado at Denver hgreenbe@carbon.cudenver.edu

2:30 p.m.
Finding the abundance of functional RNA molecules in the space of all possible sequences.
Rob Knight*, MCD Biology, CU Boulder
(9899290) 
3:20 p.m.
Searching for Sequence Motifs with Single Molecules.
Thomas T. Perkins*, CU BoulderNIST
(98992118) 
4:10 p.m.
A motor that makes its own track: helicase opening of DNA.
M D Betterton*, University of Colorado at Boulder
(98992145)

2:30 p.m.

Friday October 3, 2003, 2:30 p.m.3:55 p.m.
Session for Contributed Papers
Room 110 (1st Floor), Engineering Center (ECCR)

2:30 p.m.
Conjugate Direction Methods in Linear Topological Spaces.
Ivie Stein, Jr.*, The University of Toledo
(98965153) 
2:45 p.m.
On the Direct Product of Measures and Applications.
Carmen Vlad*, Pace University
(9892842) 
3:00 p.m.
The Hamming Distance between Two Uniform Set Systems.
Junichiro Fukuyama, Dr.*, Indiana State University
(9890520) 
3:15 p.m.
Optimality Condition In Optimization Network Tasks.
Seilkhan Boranbayev*, Milwaukee, WI
(9890523) 
3:30 p.m.
Rational jet dependence of formal equivalences between realanalytic hypersurfaces in $\mathbb{C}^2$.
R. Travis Kowalski*, Colorado College
(98932273) 
3:45 p.m.
Structure of associated prime ideals of differential operator rings.
Vijay Kumar Bhat, Dr.*, Banasthali VidyapithRajasthan304022.India.
(9891610)

2:30 p.m.

Friday October 3, 2003, 5:10 p.m.6:00 p.m.
Erd\H os Memorial Lecture
Some Insights of Computational Complexity Theory.
Room A2B70, MCDB Biology
Avi Wigderson*, Institute for Advanced Study 
Friday October 3, 2003, 6:15 p.m.7:30 p.m.
Reception (Hosted by the Department of Mathematics)
Room 350, Mathematics Building